dev-cpp-users

[Julio L. <ju2...@ya...>]

I cant figure out why the last if statment in the
changeCells function causes a crash....need help

//towersofhanoi3.hpp

class Ring
{
public:
    Ring()
    {
        thisRing= new char[26];
    }
    virtual ~Ring()
    {
        delete [] thisRing;
    }

    virtual void setRing(char
ring[26]){strcpy(thisRing, ring);}
    virtual char* getRing() const{ return thisRing;}

private:

    char *thisRing;
};



class groupRings: public Ring
{
public:
   groupRings()
   {
        for(int i=0; i<11; i++)
            pRings[i]= new Ring;
   
        pRings[0]->setRing("           *3*          
");
        pRingsL[0]= 3;
        pRings[1]->setRing("          **5**         
");
        pRingsL[1]= 5;
        pRings[2]->setRing("         ***7***        
");
        pRingsL[2]= 7;
        pRings[3]->setRing("        ****9****       
");
        pRingsL[3]= 9;
        pRings[4]->setRing("       ****11*****      
");
        pRingsL[4]= 11;
        pRings[5]->setRing("      *****13******     
");
        pRingsL[5]= 13;
        pRings[6]->setRing("     ******15*******    
");
        pRingsL[6]= 15;
        pRings[7]->setRing("    *******17********   
");
        pRingsL[7]= 17;
        pRings[8]->setRing("   ********19*********  
");
        pRingsL[8]= 19;
        pRings[9]->setRing("  *********21********** 
");
        pRingsL[9]= 21;
        pRings[10]->setRing("                        
");
        pRingsL[10]= 26;
   }

   ~groupRings(){ delete [] pRings;}

   char* getRings(unsigned short int i) const{ return
pRings[i-1]->getRing();}
   int getRingL(unsigned short int i) const{return
pRingsL[i-1];}

private:

   Ring *pRings[11];
   int pRingsL[11];
};



class Board
{
public:

    Board()
    {
        for(int column=0; column<3; column++)
            for(int row=0; row<26; row++)
                pbCell[column][row]= new char [26];
    }

    ~Board()
    {
        delete [] pbCell;
    }

    void setCell(int column, int row, char ring[26]){
strcpy(pbCell[column-1][row-1], ring);}
    char* getCell(int column, int row) const{return
pbCell[column-1][row-1];}

private:

    char *pbCell[3][26];
};

//end towersofhanoi3.hpp


//towersofhanoi.cpp

#include <iostream.h>
#include <stdlib.h>
#include "towersofhanoi3.hpp"

void menu();
void infoTOH();
void aboutTOH();
void objectTOH();
void rulesTOH();
void demoGm();
void changeCells(unsigned short int, unsigned short
int, groupRings *, Board *);
void board4(Board *);


int main()
{
      menu();
      return 0;
}// end main()

void menu()
{
    unsigned short int menuChoice;
    bool exit= true;
    Ring *pRings= new Ring;
    Board *pBoard= new Board;

    while(exit)
    {
        system("cls");

        cout << "\n\n                           ***THE
TOWERS OF HANOI***\n\n\n";
        cout << "                       (1)Info on THE
TOWERS OF HANOI\n";
        cout << "                       (2)Demo\n";
        cout << "                       (3)Play\n";
        cout << "                       (4)Exit\n\n";
        cout << "                        Enter Choice
#: ";
        cin >> menuChoice;


        switch(menuChoice)
        {
        case 1: infoTOH();
                break;
        case 2: demoGm();
                break;
        //case 3: play();
            //break;
        case 4: exit = false;
                break;
        default: exit = false;
                 break;
        }//end switch()
    }//end while()

    delete pRings;
    delete pBoard;
}//end menu()



void infoTOH()
{
    unsigned short int infoChoice;
    bool exit= true;
    void (*infoFuncPntr)();

    while(exit)
    {
        system("cls");

        cout << "\n\n                         ***THE
TOWERS OF HANOI Info***\n\n\n";
        cout << "                         (1) About
THE TOWERS OF HANOI\n";
        cout << "                         (2) Object
of THE TOWERS OF HANOI\n";
        cout << "                         (3) Rules of
THE TOWERS OF HANOI\n";
        cout << "                         (4) Return
to Main Menu\n\n";
        cout << "                                Enter
Choice #: ";
        cin >> infoChoice;

        switch(infoChoice)
        {
        case 1: infoFuncPntr= aboutTOH;
                break;
        case 2: infoFuncPntr= objectTOH;
                break;
        case 3: infoFuncPntr= rulesTOH;
                break;
        case 4: exit= false;
                break;
        default: exit= false;
                 break;
        }//end switch()

        if(exit != false)
            infoFuncPntr();
            //end if()
    }//end while()
}//end infoTOH()



void aboutTOH()
{
    system("cls");

    cout << "\n\n                        ***About THE
TOWERS OF HANOI***\n\n\n";
    cout << "The ancient puzzle of THE TOWERS OF HANOI
involves three pegs with numerous\n";
    cout << "rings on the first peg. The rings are
arranged in increasing order of size,\n";
    cout << "from top to bottm.\n\n";

    system("PAUSE");

}

void objectTOH()
{
    system("cls");

    cout << "\n\n                      ***Object of
THE TOWERS OF HANOI***\n\n\n";
    cout << "The objective of this puzzle is to move
all the rings from the third peg to\n";
    cout << "the first peg in the original order that
they began in.\n\n";

    system("PAUSE");
}

void rulesTOH()
{
    system("cls");

    cout << "\n\n                       ***Rules of
THE TOWERS OF HANOI***\n\n\n";
    cout << "The rules are that only one ring may be
moved at a time and that a larger ring\n";
    cout << "may never be placed on a smaller
ring.\n\n";

    system("PAUSE");
}



void demoGm() //Shows how to win a four ring game
{
    groupRings *pRings= new groupRings;
    Board *pBoard= new Board;

    for(int column= 1; column<3; column++)
        for(int row= 1; row<11; row++)
            pBoard->setCell(column, row,
pRings->getRings(11));

    for(int column= 3; column<4; column++)
        for(int row= 1, ring= 9; row<5; row++, ring--)
            pBoard->setCell(column, row,
pRings->getRings(ring));

    for(int column= 3; column<4; column++)
        for(int row= 5; row<11; row++)
            pBoard->setCell(column, row,
pRings->getRings(11));

    system("cls");

    cout << "\n\n                               
***Demo Game***\n\n\n";
    cout << "                                 *4 Ring
Game*\n";
    cout << "                                *No Moves
Made*\n\n";

    board4(pBoard);

    system("PAUSE");
    system("cls");

    changeCells(3, 2, pRings, pBoard);

    cout << "\n\n                               
***Demo Game***\n\n\n";
    cout << "                                 *4 Ring
Game*\n";
    cout << "                                *One Move
Made*\n\n";

    board4(pBoard);

    system("PAUSE");
    system("cls");

    delete pRings;
    delete pBoard;
}

void changeCells(unsigned short int fromColumn,
unsigned short int toColumn, groupRings * rRings,
Board *rBoard)
{
    unsigned short int fromRow, toRow, fromRingNum,
toRingNum;
    bool compareFrom, compareTo, findFromRing,
findToRing;

    if(fromColumn != toColumn)
    {
        //Find first ring that is not empty in from
column
        for(int i= 11; i>0; i--)
        {
            compareFrom=
strcmp(rBoard->getCell(fromColumn, i),
rRings->getRings(11));

            if(compareFrom == 1)
            {
                fromRow= i;
                break;
            }//end if(compareFrom)

            if(compareFrom == 0 && i == 1)
            {
                fromRow= 1;
            }//end if
        }//end for i

        //Find first ring that is not empty in to
column
        for(int i=11; i>0; i--)
        {
            compareTo=
strcmp(rBoard->getCell(toColumn, i),
rRings->getRings(11));

            if(compareTo == 1)
            {
                toRow= i;
                break;
            }//end if(compareTo)

            if(compareTo == 0 && i == 1)
            {
                toRow= 1;
            }//end if
        }//end for i

        //Find the ring length of first non empty ring
in from column
        for(int i=10; i>0; i--)
        {
            findFromRing=
strcmp(rBoard->getCell(fromColumn, fromRow),
rRings->getRings(i));

            if(findFromRing == 0)
            {
                fromRingNum = i;
                break;
            }//end if(findFromRing)
        }//end for i

        //Find the ring length of first non empty ring
in to column
        for(int i=10; i>0; i--)
        {
            findToRing=
strcmp(rBoard->getCell(toColumn, toRow),
rRings->getRings(i));

            if(findToRing == 0)
            {
                toRingNum = i;
                break;
            }//end if(findToRing)
        }//end for i

        //If to column ring length is greater than the
from column ring length
        //then move the ring from the from column to
the to column above
        if(rRings->getRingL(toRingNum) >
rRings->getRingL(fromRingNum))
        {
            rBoard->setCell(toColumn, toRow+1,
rRings->getRings(fromRingNum));
            rBoard->setCell(fromColumn, fromRow,
rRings->getRings(11));
        }//end if(to ring > from ring)
    }//end if(from != to)
}//end changeCells



void board4(Board *rBoard)
{
    cout << "
-----------------------------------------------------------------------------\n";
    cout << "|                         |              
          |                         |\n";
    cout << "|            |            |            | 
          |            |            |\n";
    cout << "|" << rBoard->getCell(1,4) << "|" <<
rBoard->getCell(2,4) << "|" << rBoard->getCell(3,4) <<
"|\n";
    cout << "|            |            |            | 
          |            |            |\n";
    cout << "|" << rBoard->getCell(1,3) << "|" <<
rBoard->getCell(2,3) << "|" << rBoard->getCell(3,3) <<
"|\n";
    cout << "|            |            |            | 
          |            |            |\n";
    cout << "|" << rBoard->getCell(1,2) << "|" <<
rBoard->getCell(2,2) << "|" << rBoard->getCell(3,2) <<
"|\n";
    cout << "|            |            |            | 
          |            |            |\n";
    cout << "|" << rBoard->getCell(1,1) << "|" <<
rBoard->getCell(2,1) << "|" << rBoard->getCell(3,1) <<
"|\n";
    cout << "|            |            |            | 
          |            |            |\n";
    cout << "
-----------------------------------------------------------------------------\n\n";
}

=====
Julio

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